What Causes White Stain On Granite

The minerals in hard water cause a different kind of stain on granite.

What causes white stain on granite.

Many cases of granite discolorations are simple stains that are easy to remove. Black or dark colored granite can develop a white haze over the surface from hard water mineral deposits. Not caused by the stone absorbing an agent but rather caused by damage to the surface. Hair dyes colored toiletries paint and stain pigments the colorants contained in chemicals when spilled on granite will seep into the granite s pores and discolor the surface.

Stains from grease cooking oil and other oil based products cause the granite to darken. Start by determining the source of the stain. If you have a light water stain that is caused by condensation you can often remove it using a mixture of mild dish soap warm water and a small amount of rubbing alcohol. And of course more lightly colored granite is more likely to show stains than darker colors so if you have a white or other pale colored granite countertop it s important to be extra vigilant.

These stains can be removed be gently cleaning the granite with one of the following products. What should you stay away from using. Some examples of things that might cause these stains are toilet bowl cleaner or spilled white vinegar. Even a completely sealed granite countertop can stain if a spill is left to sit for long enough.

When hard water sits on a granite surface and dries it leaves a visible mineral deposit that often creates white rings especially around faucets. The porous granite soaks colors and dyes often resulting in stains after lots of use or exposure to some fluids or objects such as oil based cosmetics food colored drinks and metal objects. A thorough cleaning with mild detergent followed by a light coat of olive or mineral oil. Corrosion typically caused by acids leaving rings or water spots that cannot be removed.

Food and beverage spills especially that of greasy foods and cooking oils can stain a granite surface over time.